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Vachellia xanthophloea (Acacia xanthophloea)

(Fever Tree)

This large sized deciduous tree is fast growing in the sun or semi-shade .It also grows well in a swampy, low lying areas and clay soils. It was originally thought that the tree caused malaria, hence it's common name. It was the swampy conditions that caused the malaria. The fragrant yellow flowers open in Spring and smell like vanilla which attracts insects and insectivorous birds. There is also a white flowering form. First hand experience shows that it has an aggressive roots system, although some books claim that they are non aggressive. Plant it 6 meters from a building or a pool. The beautiful yellow bark makes it distinctive and highly sought after, but be aware that they are frost tender when young. It is a useful tree as it has medicinal bark, edible gum and the timber is used for boxwood, furniture and carving as it is hard and heavy. Elephants eat the young branches and giraffe, monkeys and baboon eat the leaves, flowers and the pods. Weavers like to build their nests in these trees, probably because the thorns help to protect them. The bark is used as a good luck charm and it is used medicinally, mixed with dried roots to treat malaria and to treat fevers and eye complaints and the bark is rolled into small balls and chewed for a cough and sore throat. Branches are used to protect fields from hippo. This is a popular bonsai subject. Unfortunately this fungal disease is rather common on Fever Trees. The fungus has been identified as a rust, similar to Uromyces. The suggestion is to totally spray the trunks with triazole type fungicides. (Defender or Bumper 30 ml per 100 L water) Probably the most popular treatment is a total drench with Trichotec --- Trichoderma spp. A living fungi that is antagonistic to many other pathogenic fungi. After the drench it is essential to cover as much of the treated trunk with newspaper to shield the Trichoderma from ultra violet light for a few weeks. Preventatively - be careful as weed-eater damage can initiate an infection. If this is not successful, call an arborist for their opinion and treatment. Named for Rev George Harvey Vachel (1798-1839) a British priest and plant collector. He was chaplain to the British East India company in China where he collected plants. Rudyard Kipling's story 'The Elephant's child' immortalised the specie with 'The banks of the great grey-green, greasy Limpopo River, all set about with Fever Trees'.

Combretum erythrophyllum

(River Bushwillow)

This is a medium to large deciduous tree with reddish autumn colours. Flowers are cream to pale yellow, slightly scented and open in September to November. The fruit are small, 4-winged and a greenish brown colour, ripening to yellowish brown and drying to a honey-brown. They stay on the tree for a long time. The fruit is poisonous and results in hiccups. A popular shade tree, surprisingly drought and frost resistant and fast growing, reaching 4-6 m in three years. The gum has interesting antibiotic properties and is applied to sores. It is non-toxic, elastic, producing a non-cracking varnish. Ornaments, cattle troughs and grain mortars are made from the wood, which is yellow, tough and easily worked. It is also used as fire wood. A dark, rich brown dye is extracted from the roots which is used when tanning hides. The dried fruits also work well in flower arrangements and are eaten by pied barbets. It has non-aggressive roots and attracts birds. It is the larval host plant for several butterflies like Liordes Hairtail, Red -tab Policeman, Two-pip Policeman and the Orange-barred Playboy. I just love these charming butterfly names! It is an ideal tree for wetlands as well as game farms as it is browsed by Kudu, Bushbuck, Eland, Giraffe and Elephant. It is often used as a street tree, in large gardens and along rivers. There are many medicinal uses. Root bark and stem bark are used to treat a cough, infertility, leprosy and VD. The bark is taken during labour to ease childbirth, to treat infertility and as an aphrodisiac. The leaves are used for coughs and abdominal pains.The roots, which some regard as poisonous are used as a purgative, to treat venereal diseases and as a prophylactic for V.D. The roots are fed to dogs by the Zulu to fatten them up.

Salix mucronata

(Safsaf Willow)

This graceful semi-deciduous to evergreen tree grows to 15m with an open crown and slightly drooping branches. Older trees have beautiful fissured, brown bark, while younger trees have smooth, green-red bark. The leaves are simple, alternate and taper to both ends. They are glossy, dark green above and light green below. The leaf margins are serrated. They are browsed by stock, hippo, nyala, kudu, grey duiker and bushbuck. The African leopard butterfly's larvae also feeds on the leaves. Flowers appear in short spikes with males and females on separate trees. The male spikes are dense, yellowish and can be up to 50mm in length. The greenish coloured female spikes are shorter and thicker. The flowing season is in summer. Monkeys eat the flowers. The fruit is a small capsule, which splits to release seeds covered with white fluff. Traditional uses include, applying bark powder to burns, and brewing tea from the leaves to treat rheumatism and malaria headaches and it is a mild laxative. This tea is also used as a skin lotion and to stimulate hair growth.It is also drunk as an appetizer. The Zulu tie the thin branches around their waist to treat abdominal and kidney pains and to give them strength.Young tree branches are used to make baskets, fire by friction and covered in a protective mixture to ward off storms and lightening. The wood is carved to make household, as well as decorative items. The tree can withstand both frost and drought. It is a water loving tree so plant it near a pond or dam but it may have aggressive roots. It will attract herons, darters and cormorants which will use the Salix for breeding. The name is derived from the Latin salia=willow, implying to spring or to leap. Willow branches are very flexible and when bent and released, they spring forward.

Trema orientalis

(Pigeonwood)

This is a fast-growing shade tree with soft foliage, best suited to gardens and streets in the warmer and wetter regions of southern Africa. Depending on climatic conditions, trees may be evergreen or deciduous. It's a good shade tree or street tree although not as tough and cold-hardy as Celtis africana (white stinkwood). In forests it is a straight, slender tree, up to 18 m on forest margins, and in the open it is wider-spreading, sometimes drooping, and in the KwaZulu-Natal bushveld it often grows as a shrub approx. 1.5 m tall. The less water it receives, the shorter it is. Flowers are small, inconspicuous and greenish, carried in short dense bunches. They are usually unisexual, i.e. male and female are separate, occasionally they are found together. Flowers appear irregularly from late winter to autumn and are pollinated by bees. Fruits are small, round and green, becoming black when ripe. They are eaten by birds like the Lesser Striped swallows, white-eyes, canaries and bats. The leaves are carried on very short stalks-this is the easiest way to tell this tree apart from the White Stinkwood whose stalks are up to 13 mm long. The leaves are browsed by kudu. The young leaves are eaten as spinach by the Zulus, who also use the roots and bark as traditional medicine. Fruit, leaves, bark, stems, twigs and seeds are used in traditional medicine in West Africa, Tanzania, East Africa and Madagascar.It is a food plant of several charaxes butterflies. The wood is used as box wood and the roots bind the soil. The name is derived from the Greek trema=aperture. hole, opening. The kernel of the fruit is pitted.

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